符号检验法
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| 符号检验法 [2023/04/18 08:35] – zhangruihao | 符号检验法 [2024/04/19 05:34] (当前版本) – aiyuheng | ||
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| - | ====符号检验法==== | + | ====符号检验法（Sign test）==== |
| *符号检验法对应于相关样本的t检验，根据两个相关样本的每一对数据之差的符号（正负）来进行检验。 | *符号检验法对应于相关样本的t检验，根据两个相关样本的每一对数据之差的符号（正负）来进行检验。 | ||
| *符号检验法可用于顺序型与类目型的数据。 | *符号检验法可用于顺序型与类目型的数据。 | ||
| + | * The symbolic test method corresponds to the t test of the relevant samples, and is tested according to the sign (positive or negative) of the difference between each pair of data of the two relevant samples. | ||
| + | * Symbolic testing can be used for sequential and categorical data. | ||
| ---- | ---- | ||
| - | **步骤：** | + | **检验步骤（checking procedure）** |
| *1.提出假设（H0：p（x> | *1.提出假设（H0：p（x> | ||
| *2.根据H0所提供的前提条件确立统计模型 | *2.根据H0所提供的前提条件确立统计模型 | ||
| 行 12: | 行 14: | ||
| *5.做出决策。 | *5.做出决策。 | ||
| + | *Hypothesis (H0: p (x>y) =0.5/ The median of the difference d population is 0); | ||
| + | *2. Establish the statistical model according to the preconditions provided by H0 | ||
| + | *3. Specify the significance level α, and then determine the negative domain; | ||
| + | *4. Calculate the value of the test statistic; | ||
| + | *5. Make decisions. | ||
| ---- | ---- | ||
| + | **大样本情况下的符号检验法（Symbolic test method in case of large sample）** | ||
| *大样本（n> | *大样本（n> | ||
| + | * For large samples (n>25), the sign test can be performed with a normal distribution approximating the binomial distribution. | ||
符号检验法.1681806928.txt.gz · 最后更改: 2023/04/18 08:35 由 zhangruihao